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Studies on the Characteristic of Element Content of Main Plant Species in Alpine Meadow community in Permafrost Region of Qinghai Tibet Plateau
Author(s): 
Pages: 17-22
Year: Issue:  2
Journal: GUANGDONG TRACE ELEMENTS SCIENCE

Keyword:  青藏铁路北麓河高寒草甸植物群落;
Abstract: 分析了青藏高原北麓河地区29种高寒植物15个元素含量的特征.结果表明,这些植物中元素平均含量>400 μg/g的元素有Ca,Mg,Na,K,Fe,10~100 μg/g的有Mn,Cr,Zn,Cu,<10 μg/g的有Ni,Co,As,Pb,Cd,Hg;种间同种元素的含量变化规律不统一.相关性分析表明,Cu与Cd,Fe与Cd和Hg,Cr与Ni,Co和Mg极显著正相关,Cr和Ca极显著负相关;聚类分析表明,Na,As元素对本区植物聚类的影响最大,莎草科、禾本科、菊科科内植物元素含量相似.
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